Prevalence and factors associated with visual impairment among medical students in a university setting in Sana’a City, Yemen. jchm [انترنت]. 30 يونيو، 2025 [وثق 14 يوليو، 2026];19(3):195-202. موجود في: https://journals.su.edu.ye/index.php/jchm/article/view/1730